Be brave, Professor. Be brave like my mother... Otherwise, you disgrace her. Otherwise, she died for nothing. Otherwise, the bowl will remain empty... forever.
Read more Harry Potter QuotesFrom: Harry Potter and the Half-Blood Prince (2009)
Severus Snape : Has it ever crossed your brilliant mind that I don't want to do this anymore?Albus Dumbledore : Whether it has or it hasn't is irrelevant; you gave me your word.
Albus Dumbledore : Severus... please...Severus Snape : Avada Kedavra!
This is beyond anything I have imagined.